A pillow someone may use for cuddling or sexual purposes; the pillow simulates the sensation of spooning with a fluffy partner that will always satisfy your emotional and sexual needs without having to find a real person or spending money on a blow up doll.
"Are you sleeping in Jesse's room tonight?"
"Yes."
"Omg make sure you don't lay your head on his jig-it pillow, don't even want to think about what he's done with that thing..."